P402 ‘Reform of residual network charging’
P402 will introduce new reporting requirements on Licensed Distribution System Operators (LDSOs) and Elexon that will ensure the provision of data to enable the (National Electricity Transmission System Operator) NETSO to set Transmission Network Use of System (TNUoS) demand residual tariffs and enable accurate billing of subsequent charges.
Following the conclusion of its Targeted Charging Review Significant Code Review , Ofgem directed National Grid and certain LDSOs to make changes to how residual revenues are recovered through Distribution Use of System (DUoS) and TNUoS demand charges.